Hvers konar álpappír er þynnupakkning?

Hvers konar álpappír er þynnupakkning?

Þynnupakkning er sérstök tegund af álpappír sem fyrst og fremst er notuð til lyfja- og læknisumbúða. Þynnupakkning virkar sem verndandi hindrun fyrir pillur, hylki og spjaldtölvur, innsigla þau í einstökum holum (blaðra) úr plasti eða PVC. Þessi tegund filmu tryggir vöruöryggi, lengir geymsluþol og veitir timper-opinbera eiginleika.

Composition and structure of blister foil

Blister foil is usually composed of multiple layers, combining aluminum with other materials to enhance performance:

Blister foil aluminum layer

Usually hard tempered aluminum (AA 8011, AA 8021 or AA 8079) acts as a barrier to light, raki, oxygen and contaminants and can be soft or hard tempered depending on the application. Typically 20µm to 30µm thick

þynnupappír
þynnupappír

Heat Seal Coating (HSL) layer

Allows the foil to bond to PVC, PVDC or other plastic materials, typically made up of vinyl, acrylic or polymer based adhesives, ensuring tablets are easily pushed in while maintaining a secure seal

Printing layer

Can include branding, batch numbers, dosage instructions or anti-counterfeiting measures
Can be printed using flexographic, rotogravure or UV printing

Blister foil types
Regular aluminium blister foil is used as a sealing material for push-in packaging, provides high humidity, oxygen and light protection, commonly used in pharmaceutical blister packaging

Printed aluminium blister foil
Same as regular foil, but with custom printing (logo, batch number, expiry date) for enhanced product identification and branding

Cold Form Blister Foil (Al-Alu)
Made from aluminium, nylon (Opa) and PVC or PVDC layers, allows cavity deep drawing Suitable for large tablets/capsules, offers 100% Moisture and light protection

Key features and benefits of blister foil

Barrier protection, hindrar raka, súrefni, UV rays and gases
Innbrotsvörn, prevents unauthorized access or contamination
Extends shelf life, maintains drug integrity
Aðlögun: can be printed with branding and regulatory information
Compatibility: suitable for PVC, Pvdc, Aclar and other plastic films

Applications of blister foil

– Lyfja umbúðir (töflur, hylki, töflur)
– Medical device packaging (syringes, needles)
– Nutraceuticals and dietary supplements
– Consumer products (chewing gum, small electronic parts)